Short answer: these RCF NX 915-A and RCF ART 735-A MK4 alternatives share a brand and size class, but their coverage, driver architecture, cabinet format, processing, and output priorities can make them fit very different jobs.
Why choose the RCF NX 915-A. The plywood enclosure, FiRPHASE/Bass Motion Control processing and flexible rigging make it a sturdier systems alternative to the ART 715-A MK5, with a wide 100° x 60° pattern and 131dB claimed peak.
Why choose the RCF ART 735-A MK4. Its large 3-inch compression-driver voice coil, 132dB claimed peak and roughly 53Hz measured extension give it useful vocal headroom and bass reach. The 21.4kg enclosure remains manageable for a 15-inch box.
What to weigh before buying. The truncated vendor measurement does not yield a preference score, preventing a confident tonal comparison with the scored leaders. At 24.1kg it is notably heavier than the ART-series alternatives. The low-quality vendor data is truncated and does not yield a preference score. It is discontinued and eclipsed by current 9-series and MK5 models.
Buy the RCF NX 915-A when its stated coverage, output, processing, and deployment format best match the job.
Buy the RCF ART 735-A MK4 when its stated strengths are the better match for the room and the rest of the PA.
The RCF ART 735-A MK4 is not a sound-quality pick. It sits near the bottom of the 29 15-inch two-way powered pa speakers; there are better options higher up.
Specifications Side By Side
| RCF NX 915-A | RCF ART 735-A MK4 | |
|---|---|---|
| Price | $1,541.00 | $888.00 |
| Ranked | #17 of 29 in 15-Inch Two-Way Powered PA Speakers | #24 of 29 in 15-Inch Two-Way Powered PA Speakers |
| Configuration | Active 2-way bass-reflex PA speaker | Active 2-way bass-reflex PA speaker |
| Drivers | 15" woofer, compression driver | 15" woofer, 1.4" compression driver with 3" voice coil |
| Frequency Response | 45Hz - 20kHz (manufacturer specified) | 45Hz - 20kHz (manufacturer specified) |
| Dimensions | 27.8"H x 16.5"W x 17.7"D (705 x 419.6 x 450.4 mm) | 27.9"H x 17.2"W x 15.3"D (708 x 437 x 389 mm) |
| Coverage | 100° x 60° | 100° x 60° |
| Maximum SPL | 131dB peak (manufacturer specified) | 132dB peak (manufacturer specified) |
| Inputs | XLR/TRS combo input and XLR output | XLR/jack combo input; XLR output |
| Amplifier Power | 2100W peak (1400W LF + 700W HF) | 1,400W peak / 700W RMS (1,000W LF + 400W HF peak, manufacturer specified) |
| Crossover Frequency | 1600Hz | 800Hz (manufacturer specified) |
| Cabinet Material | Polyurea-coated plywood | Polypropylene composite |
| Rigging | 6 x M10 inserts | Two M10 fly points; pole mount |
| Bass Extension (-3dB) | 53Hz (measured, vendor Spinorama data) | 53Hz (measured, vendor Spinorama data) |
| DSP | Yes, FiRPHASE and Bass Motion Control | Yes, FiRPHASE, EQ, limiting and protection |
| Bluetooth | No | No |
| Weight | 53.1 lbs / 24.1 kg | 47.2 lbs / 21.4 kg |
Related Speaker Comparisons
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- Yamaha DXR15mkIII vs RCF ART 745-A MK5
- JBL PRX915 vs RCF ART 745-A MK5
- RCF ART 715-A MK5 vs RCF ART 745-A MK4
- Yamaha DXR10mkIII vs RCF NX 915-A
- Yamaha DXR15mkII vs RCF NX 915-A
Prices on this page were last checked September 7, 2026 at 7:47 AM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
RCF NX 915-A: $1,541.00 Amazon B&H Photo Video Guitar Center eBay
Pros: The plywood enclosure, FiRPHASE/Bass Motion Control processing and flexible rigging make it a sturdier systems alternative to the ART 715-A MK5, with a wide 100° x 60° pattern and 131dB claimed peak.
Cons: The truncated vendor measurement does not yield a preference score, preventing a confident tonal comparison with the scored leaders. At 24.1kg it is notably heavier than the ART-series alternatives.
Full RCF NX 915-A review and specifications →
| Amplifier Power | 2100W peak (1400W LF + 700W HF) |
|---|---|
| Bass Extension (-3dB) | 53Hz (measured, vendor Spinorama data) |
| Bluetooth | No |
| Cabinet Material | Polyurea-coated plywood |
| Configuration | Active 2-way bass-reflex PA speaker |
| Coverage | 100° x 60° |
| Crossover Frequency | 1600Hz |
| DSP | Yes, FiRPHASE and Bass Motion Control |
| Dimensions | 27.8"H x 16.5"W x 17.7"D (705 x 419.6 x 450.4 mm) |
| Drivers | 15" woofer, compression driver |
| Frequency Response | 45Hz - 20kHz (manufacturer specified) |
| Inputs | XLR/TRS combo input and XLR output |
| Maximum SPL | 131dB peak (manufacturer specified) |
| Rigging | 6 x M10 inserts |
| Weight | 53.1 lbs / 24.1 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
RCF ART 735-A MK4: $888.00 B&H Photo Video Guitar Center eBay
Pros: Its large 3-inch compression-driver voice coil, 132dB claimed peak and roughly 53Hz measured extension give it useful vocal headroom and bass reach. The 21.4kg enclosure remains manageable for a 15-inch box.
Cons: The low-quality vendor data is truncated and does not yield a preference score. It is discontinued and eclipsed by current 9-series and MK5 models.
Full RCF ART 735-A MK4 review and specifications →
| Amplifier Power | 1,400W peak / 700W RMS (1,000W LF + 400W HF peak, manufacturer specified) |
|---|---|
| Bass Extension (-3dB) | 53Hz (measured, vendor Spinorama data) |
| Bluetooth | No |
| Cabinet Material | Polypropylene composite |
| Configuration | Active 2-way bass-reflex PA speaker |
| Coverage | 100° x 60° |
| Crossover Frequency | 800Hz (manufacturer specified) |
| DSP | Yes, FiRPHASE, EQ, limiting and protection |
| Dimensions | 27.9"H x 17.2"W x 15.3"D (708 x 437 x 389 mm) |
| Drivers | 15" woofer, 1.4" compression driver with 3" voice coil |
| Frequency Response | 45Hz - 20kHz (manufacturer specified) |
| Inputs | XLR/jack combo input; XLR output |
| Maximum SPL | 132dB peak (manufacturer specified) |
| Rigging | Two M10 fly points; pole mount |
| Weight | 47.2 lbs / 21.4 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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- RCF ART 735-A MK4 vs FBT J15A
- RCF ART 735-A MK4 vs Behringer Eurolive B215XL
- RCF ART 735-A MK4 vs RCF ART 715-A MK4
- RCF ART 735-A MK4 vs RCF ART 745-A MK4
- RCF ART 735-A MK4 vs Yamaha DBR15
- RCF ART 735-A MK4 vs RCF ART 745-A MK5
- See all 19 comparisons